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Finding the Fourth Proportional to 10,401.90, 15,602.85 and 4,569.90

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Solution

The fourth proportional to 10,401.90, 15,602.85 and 4,569.90 is: 6,854.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,401.90 : 15,602.85 = 4,569.90 : x
  2. Step 2: Convert to fraction form
    10,401.90/15,602.85 = 4,569.90/x
  3. Step 3: Cross multiply
    10,401.90x = 15,602.85 × 4,569.90
  4. Step 4: Simplify right side
    10,401.90x = 71,303,464.22
  5. Step 5: Solve for x
    x = 71,303,464.22/10,401.90
  6. Step 6: Final answer
    x = 6,854.85

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.